Comparison of Flutiform, Fluticasone and Seretide in Treatment of Moderate to Severe Asthma in Paediatric Patients

This is a study involving a 2-4 week run-in phase followed by a 12 week double blind treatment phase. During the run-in phase, all subjects receive Flixotide. In the treatment phase subjects will be randomised to one of the 3 treatment groups and will receive active Flutiform and placebo Flixotide or Active Seretide and placebo Flixotide or active Flixotide and either placebo seretide or placebo Flutiform. Efficacy will be assessed by lung function tests, asthma symptoms, sleep disturbance due to asthma and rescue medication use. Safety will be assessed by adverse events, lab tests, urinary cortisol and vital signs.